Control of Nonlinear Systems Under Multiple Time-Varying Output Constraints: A Single Funnel Approach
arXiv:2307.06465 · doi:10.1109/CDC49753.2023.10383359
Abstract
This paper proposes a novel control framework for handling (potentially coupled) multiple time-varying output constraints for uncertain nonlinear systems. First, it is shown that the satisfaction of multiple output constraints boils down to ensuring the positiveness of a scalar variable (the signed distance from the time-varying output-constrained set's boundary). Next, a single funnel constraint is designed properly, whose satisfaction ensures convergence to and invariance of the time-varying output-constrained set. Then a robust and low-complexity funnel-based feedback controller is designed employing the prescribed performance control method. Finally, a simulation example clarifies and verifies the proposed approach.
9 pages, 2 figures, submitted to 2023 IEEE 62nd Conference on Decision and Control (CDC)